- optimized downloadthreads

- fixed resizing in torrent addition dialog

src/downloadThread.cpp

@@ -24,6 +24,8 @@
 #include <QSettings>
 #include <stdio.h>
 
+#define MAX_THREADS 3
+
 // http://curl.rtin.bz/libcurl/c/libcurl-errors.html
 QString subDownloadThread::errorCodeToString(CURLcode status) {
   switch(status){
@@ -150,9 +152,7 @@ downloadThread::~downloadThread(){
 
 void downloadThread::downloadUrl(QString url){
   QMutexLocker locker(&mutex);
-  if(downloading_list.contains(url)) return;
-  url_list << url;
-  downloading_list << url;
+  urls_queue.enqueue(url);
   if(!isRunning()){
     start();
   }else{
@@ -165,8 +165,8 @@ void downloadThread::run(){
     if(abort)
       return;
     mutex.lock();
-    if(url_list.size() != 0){
-      QString url = url_list.takeFirst();
+    if(!urls_queue.empty() && subThreads.size() < MAX_THREADS){
+      QString url = urls_queue.dequeue();
       mutex.unlock();
       subDownloadThread *st = new subDownloadThread(0, url);
       subThreads << st;
@@ -187,9 +187,9 @@ void downloadThread::propagateDownloadedFile(subDownloadThread* st, QString url,
   delete st;
   emit downloadFinished(url, path);
   mutex.lock();
-  index = downloading_list.indexOf(url);
-  Q_ASSERT(index != -1);
-  downloading_list.removeAt(index);
+  if(!urls_queue.empty()) {
+    condition.wakeOne();
+  }
   mutex.unlock();
 }
 
@@ -200,8 +200,8 @@ void downloadThread::propagateDownloadFailure(subDownloadThread* st, QString url
   delete st;
   emit downloadFailure(url, reason);
   mutex.lock();
-  index = downloading_list.indexOf(url);
-  Q_ASSERT(index != -1);
-  downloading_list.removeAt(index);
+  if(!urls_queue.empty()) {
+    condition.wakeOne();
+  }
   mutex.unlock();
 }

src/downloadThread.h

@@ -30,6 +30,7 @@
 #include <QWaitCondition>
 #include <QStringList>
 #include <curl/curl.h>
+#include <QQueue>
 
 class subDownloadThread : public QThread {
   Q_OBJECT
@@ -55,8 +56,7 @@ class downloadThread : public QThread {
   Q_OBJECT
 
   private:
-    QStringList url_list;
-    QStringList downloading_list;
+    QQueue<QString> urls_queue;
     QMutex mutex;
     QWaitCondition condition;
     bool abort;

src/torrentAddition.h

@@ -80,7 +80,7 @@ class torrentAdditionDialog : public QDialog, private Ui_addTorrentDialog{
       connect(actionHigh, SIGNAL(triggered()), this, SLOT(highSelection()));
       connect(actionMaximum, SIGNAL(triggered()), this, SLOT(maximumSelection()));
       torrentContentList->header()->resizeSection(0, 200);
-      torrentContentList->header()->setResizeMode(0, QHeaderView::Stretch);
+      //torrentContentList->header()->setResizeMode(0, QHeaderView::Stretch);
       QString home = QDir::homePath();
       if(home[home.length()-1] != QDir::separator()){
         home += QDir::separator();